Strength-measuring method for bilateral reinforced concrete based on combined ultrasonic-rebound method
SONG Fu-chun
LIU Shuai-wei
KANG Ning
Abstract：In order to analyze the feasibility of combined ultrasonic-rebound method in detecting the strength of concrete members after bilateral reinforcement,the influence of steel bar on the ultrasonic velocity was studied.With the combined ultrasonic-rebound method,the effect of old concrete part on the overall strength of specimens was removed,and the strength measurement for the concrete specimens after bilateral reinforcement was conducted in combination with the rebound value. The results show that the strength-measuring curve in Liaoning area is superior to that in the nationwide area.When the new detection method is used to detect the strength of specimens, the results can meet the requirements in the specification.The steel bar in the concrete member can make the sound time value become smaller.The proposed method can accurately detect the strength of concrete specimens with bilateral reinforcement, which broadens the application range of combined ultrasonic rebound method in engineering.
Keywords：bilateral reinforced concretecombined ultrasonic-rebound methodstrength-measuring curveage of concretenondestructive examinationultrasonic velocitydetection regionstrength
Publication Date：2016-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：6( 573-578 )